wolfram steel

from WordNet (r) 3.0 (2006)
wolfram steel
    n 1: a very hard heat-resistant steel containing tungsten [syn:
         {tungsten steel}, {wolfram steel}]
from The Collaborative International Dictionary of English v.0.48
Wolfram steel \Wol"fram steel\
   Same as {Tungsten steel}.
   [Webster 1913 Suppl.]
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